Clutch



June 14. 1927. 1,632,763

PL J. KuRscHEmT x-:T-AL

' CLUTCH OriginalFiled Avril 29. 1922 x- Aummlml, nl..

Y- i y v R5 77 A 70 Pe/cr Jo/1n Harry .fg/Varwaao Hmz ma@ ATTORNEYS 45 hanolled as will be understood." rThe shaft Patented June 14, 1927.

TETER JOHN ymmsonnrn'r, or WOonHAvnmANn :HARRYn NORWOOD, or BROOKLYN, NEW YORK, yassumons, BY MEsNEKAssIGNMENTaTO PERF-EOT WrNnOWnEem L ATOR CORPORATION, or LONG. ISLAND OTTY, NEW Yoann CORPORATION OF DELAWARE; n y .i

CLUTCH,

i Original application Ied `April 29,` 1922, ySeriali No. 557,470.` :Dividedv and this application i1ed`Apri1`28', C i 'i Y 1926. serial No. 105,062. l

This invention relates to improvements'in clutches for Window regulators or similar Vdevices,*the applicationbeing a division of United Statesfpatent appatie'n Serial *No 557.470, filed April 29, i922; l i f `It 'is one of the primary objects of therv invention to e yprovide an automatic clutch mechanism which Will "serve to positivelyV lock the parts Ain' position except when the mechanism 'is operatedby the` control handleprovided for that purpose. l l

"It is another objectte providel va relatively simple n-iechanism for accomplishing the above purposes and one not liable y,to become #out of Order.

' The'sevand -'other'objects Will` appear more fullyirom `the .following deseriptionwhen considered in connection With the drawings invvhi'ch: i l L Y Fig. l is a face vievv` of the clutclfifmecha- 't nisna constructed according to our invention,

i f 'of the pinion.

partsofy the'outer casing being removed. Y -F1g;2'1s an 'edge view thereof.

`Fifgnv is a sectional' vi'ew tal'ren substan-` tiallyuon thev lfine'3`-3j of Fig/2.* l*

"Fig: 4e is a side" 'elevation Yandpla'nview Fig-fais* a View' similar to Fig. 2 but showing the clutclr partsV inunlockedg'position. v j

Fig; y6 is side elevation 'of the ycrankor 'driving shaft. Referring4 detail to tlre several figures `ofthe drawing: f l f The casing for' supporting the fu'clutch f mechanism includes the" plates 3 andtone ovvliclr maybe a lockboard andthe othery Y drawn jdowninto engagementftvththe lockl vboard for" c'oin'pletely housing the" clutch vmechanism anda portionofthe operated apparatus;` Y A The lclutch:Inechansin includes 'a' transverser` operating shaft 68v which maybe squared and. arranged tohaveseeuredthere@ onf in anydesired' manner afrnan'ual-v 'control .68 is? provided withla Kreducedr extension 66 .forming a Vbearing `for the endof the Operating shaft; rThere isrigidlfy Vsecured to the' ,gear 75.

lai'ged' hubA 59` to'which there is vsecured the cam plate 70. The'cam plateYO surrounds the sli-aft 68 andis provided with inner portions 770d 'and Outer portions'ZO"` connected by angular o1" cam portions' 70? for a. pur- 5 UNIT STATES kmilufferries;

pose to' beiliereinafter'referred to. The outer portions 7Obcarry'sto1`) members 7l shown in the. present instan ceK as outvvardly extend.- ing pins. The vbearingsv 59 and 66 serve to sjupportfthe Atransverse shaft in the casing D', .l. lclutch member for, :plate 69`forine'd With a series of lingers or extensions 69'EL Aadjacent `,the outerk periphery: of the same y for receiving the clutchfmember hereinafter vreferred to.,`V` f Q l ,l v The roperated mechanism oi vthe clutch includes the axially'slidable clutch'l m'emberf).

Vmounte'c'l rvupon the enlargedhub v62 of the The housiiig also supports a fixed shaft 68 andv having the body part thereof formed 'of segments 72al forming slots or` i cut-out portions' 74', the segments terminating in transverse fingers or. extensions l73 e ar-v ranged to `co-actw1th the `extensions 69? of' the plate 69 fo`1floclri1i'e,` the clutclifplate 7 2 Y to the lixed plate 'lh-e operated clutch rmeelianism'. also includes the enmeshed `gearsfjjand 76 Con-` neeted in any desired manner .with the Window regulator` or other operated mechanism, this part 'of `the construction` .iormmg l no part of ourpresent invention.; The gear'l' formed avithtrans'verse pins 77 arranged in vparallel relation and passing through openings"'iormedfin the movable clutch member 72 foncausing simultaneous rotation of the clutohme'mber andgear 7 5. The pins 77 and hub iornrthe support for the' clutch member .7214l permitting longitudinal i'novement ofthe member @relatively to the shaft 6'8`andgear L75,'but causing the' clutch member and gear75to be simultaneously rol tated. "The clutclimember'Q is urgedinto locking engagement With the fixedvclutch member 79by'mea'nfs of the spring,78` positionedlietiveen the clutch member k72 and ltfvrill benoted that `the extendedportions 7Gb of theelutelr plate 7 O i extend into and normally lie `Within .thefslets' foith'e inciv-t anfauh'membef172 with the `angers' 73 f in engagement with the fixed clutch member 69. Upon rotation of the shaft 68 the ring 70 is rotated therewith, the cam surfaces 70c engaging the side edges of the slots 74 and causing the plate 72 to be moved axially toward the gear 75 thereby disengaging the fingers 73 from the clutch melnber 69. The plate 72 may ride up the inclined surfaces 70c until the portions 72 of the plate rest upon the outer surface 70h of the plate 70, additional rotation of the shaft (iS relatively tio the clutch member 72 being prevented by thc stop members 7l. lVhen the sections 72"L are released from the upper surface 70b of the cam plate the spring 78 causes the plate 72 and fingers 73 to be moved toward the fixed clutch plate 69 and a consequent locking of the plate 72 and gears 75 and 76, further movements of the gears being impossible until the shaft 68 has been operated again to release the clutch plate 72 from the plate 69. It will be understood thatthe direction of rotation of the shaft 68 is of no importance, the clutch operating in exactly the same manner for either direction of rotation thereof.

While a certain specific construction is herein shoivn and described it is to be understood that this is merely an illustration of the invention the scope of which is to be ascertained from the appended claims.

IVe claim:

l. In a clutch mechanism, a rotatable operated member, a rotatable operating member rotatable with or relatively7 to said operated member, a fixed member, a longitudinally movable clutch member keyed for rotation with said operated member and having means formed thereon for engagement ivith said fixed member, spring means tending to move said clutch member into engagement with said fixed member, and means carried by said operating member for moving said clutch member out of engagement with said fixed member upon rotation of said operating member.

2. In a clutch mechanism, an operated member, means for locking said operated member against movement, an operating member, means operated by said operating member for controlling said locking means, said last named means remaining in positions of rest when said locking means is in locked and unlocked conditions respectively until said operating member is again Operated.

3. In a clutch mechanism, a manual control shaft, an operated mechanismineluding a longitudinally movable clutch member, a fixed member, said clutch member having means for engagement with said fixed member, a cam plate carried by said control shaft and engageable with said clutch member, said plate having inner and outer engagement surfaces positioned indifferent planes transversely of said shaft and angular surfaces joining said first-named surfaces.

4. In a clutch mechanism, a manual control shaft, an operated mechanism including a longitudinally movable clutch member, a fixed member, sai-d clutch member having means for engagement with said fixed member, :l cam plate carried by said control shaft and engageable with said clutch member, said plate having inner and outer engagement surfaces positioned in dit'n ferent' planes transversely of said shaft and angular surfaces joining said first-named surfaces, said movable clutch member having slots normally receiving portions of said cam plate.

5. In a clutch mechanism, a manual control shaft, an operated mechanism including a longitudinally movable clutch member, a fixed member, said clutch member having means for engagement with said fixed member, a cam plate carried by said control shaft and engageable with said clutch member, said plate having inner and outer engagement surfaces positioned in different planes transversely of said shaft and angular surfaces joining said first-named surfaces, said movable clutch member having portions separated by slots, said slots normally receiving port-ions of said cam plate, said portions of said clutch member engaging said cam plate to move said clutch plate from the inner to the outer engagement surfaces of said cam plate.

6. In a clutch mechanism, a rotatable operator provided with an operating element having a low portion and a high portion, a movable clutch member, means engaged with said operating element for moving said clutch member, said means resting upon either the low portion or high portion of said operating element until moved by rotation of said operator.

7. In a clutch mechanism, a clutch operator provided with an operating plate having cams thereon, a clutch member formed with slots normally receiving said cams, means tending to force said operating plate and clutch member together, said clutch member and operator being relatively movable to permit said cams to move out of said slots, and means for retaining said cams out of said slots until said operator is operated.

8. In a clutch mechanism, a clutch operator provided with an operating plate having cams thereon, a clutch member having means for engagement with said cams, said operator being rotatable relatively to said clutch member, stop members for preventing unlimited rotation of said operator relatively to Said clutch member, and means for retaining sald clutch member on said operator adjacent said stop member until said operator is operated,

Sti

klocking elements, a. longitudinally movable clutchk niember'provided With locking eXtensions upon the outer, periphery thereof adapted to engage said locking elements, and

means carried by said shaft for movingsaid movable clutch member.

10. In a clutch mechanism, an -operating shaft, a cam plate secured to said shaftand provided with cams, a fixed clutch member, an operated member, a movable clutch mems ber loosely mounted upon said operated Vmember for rotation therewith and formed with circumferentially spaced portions en- 15y cam plate, said portions be ing constructed to `be ,engaged and moved by the camson said plate when said shaft is rotated, and means tending to -force said gaged With said movable lclutch member toward said cam 20 plate.

Signed at`fNeW York thehcounty of New York7 and'State of New York this 27th Y day of April A. D. 1926.

PETER- JOHN KURSCHEIDT.

HARRY E. NoRWoon. 

